ChemicalBook >> CAS DataBase List >>laudanosine
laudanosine
- CAS No.
- 2688-77-9
- Chemical Name:
- laudanosine
- Synonyms
- Nsc 35045;(S)-Laudanosine;Einecs 220-253-2;(+)-(S)-Laudanosine;Cisatracurium Besylate Impurity 49;Atracurium Impurity 10(S-Laudanosine);(S)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline;(1S)-1,2,3,4-Tetrahydro-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methylisoquinoline;[1S,(+)]-1-[(3,4-Dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methylisoquinoline;Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-, (1S)-
- CBNumber:
- CB7897724
- Molecular Formula:
- C21H27NO4
- Molecular Weight:
- 357.44
- MDL Number:
- MFCD27978049
- MOL File:
- 2688-77-9.mol
- MSDS File:
- SDS
Last updated:2026-05-28 03:30:36
| Melting point | 89° |
|---|---|
| alpha | D16 +106° (c = 1.6 in 97% alc); D16 +130° (chloroform); D22 +52.2 ±1.3° (chloroform); D20 +82.5° (ethanol) |
| Boiling point | 490.07°C (rough estimate) |
| Density | 1.1729 (rough estimate) |
| refractive index | 1.5614 (estimate) |
| storage temp. | -20°C Freezer |
| solubility | Chloroform (Slightly), Ethanol (Slightly), Methanol (Slightly, Sonicated) |
| form | White to Pale Beige |
| pka | 7.80±0.40(Predicted) |
| color | White to off-white |
| FDA UNII | DA7R5WVN48 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS06 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| NFPA 704 |
|
laudanosine price More Price(16)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Cayman Chemical | 27170 | (S)-Laudanosine ≥98% | 2688-77-9 | 1mg | $75 | 2026-04-30 | Buy |
| Cayman Chemical | 27170 | (S)-Laudanosine ≥98% | 2688-77-9 | 5mg | $351 | 2026-04-30 | Buy |
| Biosynth | FL24858 | (S)-Laudanosine | 2688-77-9 | 100mg | $1114 | 2026-06-04 | Buy |
| Biosynth | FL24858 | (S)-Laudanosine | 2688-77-9 | 250mg | $2200 | 2026-06-04 | Buy |
| Biosynth | FL24858 | (S)-Laudanosine | 2688-77-9 | 500mg | $3405 | 2026-06-04 | Buy |
laudanosine Chemical Properties,Uses,Production
Uses
Laudanosine is a metabolite of the neuromuscular-blocking drugs Atracurium (A794500) and Cisatracurium (C496700) with potentially toxic systemic effects. It crosses the blood-brain barrier and may cause excitement and seizure activity.
Definition
ChEBI: Laudanosine is a member of isoquinolines.
Purification Methods
Crystallise these from EtOH. The (±)-picrate crystallises from EtOH with m 177-178o. The (-)-isomer has m 83-85o and
laudanosine Preparation Products And Raw materials
Global( 41)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Chemsky (shanghai) International Co.,Ltd | 021-50135380 | shchemsky@sina.com | China | 15350 | 60 |
| Shanghai TaoSu Biochemical Technology Co., Ltd. | 021-33632979 | info@tsbiochem.com | China | 8039 | 58 |
| Quality Control Solutions Ltd. | 0755-66853366 13670046396 | orders@qcsrm.com | China | 18188 | 56 |
| Shanghai Xiang Xin Industrial Co., Ltd. | 021-50211651 13651607026; | sales@xxgmpharm.com | China | 498 | 58 |
| Shanghai EFE Biological Technology Co., Ltd. | 021-65675885 18964387627 | info@efebio.com | China | 9799 | 58 |
| Shanghai Chaolan Chemical Technology Center | QQ：65489617 13301690235 | Sales@ATKchemical.com | China | 9699 | 58 |
| Shanghai Hongye Biotechnology Co. Ltd | 400-9205774 400-920-5774 | sales@glpbio.cn | China | 6705 | 58 |
| Shenzhen Polymeri Biochemical Technology Co., Ltd. | +86-400-002-6226 | sales@rrkchem.com | China | 57336 | 58 |
| Shanghai Star Pharmaceutical Chemical Technology Co., Ltd. | 021-58521787 17701827760 | starpharmsh@gmail.com | China | 301 | 58 |
View Lastest Price from laudanosine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-11 | (S)-Laudanosine
2688-77-9
|
$195.00 | 99.86% | 10g | TargetMol Chemicals Inc. |
-
- (S)-Laudanosine
2688-77-9
- $195.00
- 99.86%
- TargetMol Chemicals Inc.
2688-77-9(laudanosine )Related Search:
Cisatracurium Besilate EP Impurity W Iodide (Mixture of Diastereomers)
Cisatracurium Besilate EP Impurity N and O Iodide (Mixture of Diastereomers)
Atracurium EP Impurity D Iodide (Mixture of Diastereomers)
Atracurium Impurity 1
(R-trans, R-trans)-AtracuriuM Besylate
Atracurium Impurity 27 Besylate
Atracurium EP Impurity K Iodide (Mixture of Diastereomers)
Atracurium Impurity 15
Atracurium Impurity 19
AtracuriuM IMpurity A1 (trans-Monoquatenary)
1of4
(+)-(S)-Laudanosine
(1S)-1,2,3,4-Tetrahydro-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methylisoquinoline
[1S,(+)]-1-[(3,4-Dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methylisoquinoline
Einecs 220-253-2
Nsc 35045
Isoquinoline, 1-[(3,4-dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-, (1S)-
(S)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline
Cisatracurium Besylate Impurity 49
(S)-Laudanosine
Atracurium Impurity 10(S-Laudanosine)
2688-77-9
Alkaloids
Aromatics
Chiral Reagents
Heterocycles
Intermediates & Fine Chemicals
Metabolites & Impurities
Pharmaceuticals
Aromatics, Chiral Reagents, Heterocycles, Metabolites & Impurities, Pharmaceuticals, Intermediates & Fine Chemicals
